CD Projekt has announced that REDKit has entered open beta, allowing anyone to download it and start making mods for The Witcher 2. If you want to try it out you can get it here. Here's word from the announcement: "The editor gives modders of all skill levels the tools, they need to tell non-linear tales full of branching plots, believable characters and far-reaching consequences for player actions. Without learning to program or wrangling with opaque editors, game creators can use the top-quality art and assets from The Witcher 2: Assassins of Kings or import their own, as well as intuitive tools for environment creation, to craft their own unique role-playing adventures."